The StagesBike and the Stages Power L/R meters each have firmware. All can be updated through the Stages Cycling app.
The app will disconnect from the bike once the update is complete and reconnect automatically.
Visit the firmware release page for details on current and past firmware versions.
Check your power meter firmware version by selecting the power meter in the Devices menu. The firmware version will display a red alert symbol if they need to be updated.
To initiate an update, select Firmware. Each power meter needs to be updated individually.